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- 2018-12-30
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Until now, only injectable vaccines against influenza have been available. Parents are reluctant to subject children to the pain of injections, but adults, who are at risk of serious complications from influenza, are commonly vaccinated. A new influenza vaccine, administered painlessly in a nasal spray, is effective for children. However, since children seldom develop serious complications from influenza, no significant public health benefit would result from widespread vaccination of children using the nasal spray.
Which of the following is an assumption on which the argument depends?- A\Any person who has received the injectable vaccine can safely receive the nasal-spray vaccine as well.
- B\The new vaccine uses the same mechanism to ward off influenza as injectable vaccines do.
- C\The injectable vaccine is affordable for all adults.
- D\Adults do not contract influenza primarily from children who have influenza.
- E\The nasal spray vaccine is not effective when administered to adults.
- 我选择的是E,答案是D,题目我看懂了,大致就是一个新型疫苗对小孩有效果。但是小朋友很少会感染这种症状,所以这个疫苗就不能带来benfit
- gap 我的理解是public benefit 不等于小孩,大人就是那个gap
- 问题是E选项说这个spray对于成年人也不是那么有效,不是也说的同吗?和D的却别在哪里呢?
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